Satellite/hands-free interlock systems and/or companion devices for radioterminals and related methods

Abstract

A radioterminal may include a transceiver, a hand-held interface coupled to the transceiver, and an interlock coupled to the transceiver. The transceiver may be configured to transmit and receive wireless communications, and the transceiver may be further configured to transmit high power communications at a high maximum power and/or EIRP and to transmit low power communications at a low maximum power and/or EIRP. The interlock may be configured to prevent the transceiver from transmitting high power communications at a power and/or EIRP that exceeds a threshold when the hand-held interface is activated. Related methods are also discussed.

What is claimed is: 
     
       1. A radioterminal comprising:
 a transceiver that is configured to transmit and receive wireless communications, wherein the transceiver is further configured to transmit high power communications at a power and/or Equivalent Isotropic Radiated Power (EIRP) that is greater than or equal to a high power threshold and to transmit low power communications at a power and/or EIRP that is less than or equal to a low power threshold; 
 a hand-held interface coupled to the transceiver; and 
 an interlock coupled to the transceiver, wherein the interlock is configured to allow the transceiver to transmit low power communications at the power and/or EIRP that is less than or equal to the low power threshold and to prevent the transceiver from transmitting high power communications at the power and/or EIRP that is greater than or equal to the high power threshold responsive to the hand-held interface being activated; 
 wherein the transceiver is configured to transmit the high power communications for space-based communications and to transmit the low power communications for terrestrial communications. 
 
     
     
       2. A radioterminal according to  claim 1  wherein the transceiver includes at least one amplifier configured to amplify the low power communications and to amplify the high power communications, and wherein the interlock is configured to disable the high power communications responsive to the hand-held interface being activated. 
     
     
       3. A radioterminal according to  claim 1  further comprising: a hands-free interface coupled to the transceiver, wherein the interlock is further configured to enable the transceiver to transmit the high power communications responsive to the hands-free interface being activated. 
     
     
       4. A radioterminal according to  claim 3  wherein the hands-free interface comprises a coupling for a remote earpiece and/or speaker. 
     
     
       5. A radioterminal according to  claim 4  wherein the coupling for the remote earpiece and/or speaker comprises a tethered and/or an untethered coupling. 
     
     
       6. A radioterminal according to  claim 4  wherein the coupling for the remote earpiece and/or speaker comprises an interface for a cradle configured to receive the radioterminal and to couple the radioterminal to a remote loudspeaker. 
     
     
       7. A radioterminal according to  claim 3  wherein the hands-free interface comprises a speakerphone interface. 
     
     
       8. A radioterminal according to  claim 1  further comprising:
 an interface for a companion device, wherein the interface is configured to provide communications from the radioterminal to the companion device and/or to provide communications from the companion device to the radioterminal. 
 
     
     
       9. A radioterminal according to  claim 8  wherein the interface comprises a wireless interface and/or a wired interface. 
     
     
       10. A radioterminal according to  claim 8  further comprising:
 a radioterminal antenna coupled to the transceiver, wherein the companion device includes a companion antenna, and wherein a gain of the companion antenna is greater than a gain of the radioterminal antenna. 
 
     
     
       11. A radioterminal according to  claim 8  wherein the transceiver includes an amplifier inside the radioterminal, wherein the companion device includes an amplifier inside the companion device, and wherein a power output of the amplifier inside the companion device is greater than a power output of the amplifier inside the radioterminal. 
     
     
       12. A radioterminal according to  claim 1  wherein the hand-held interface comprises a built-in speaker configured to provide audio output corresponding to wireless communications received by the transceiver and/or by a device that is wirelessly and/or non-wirelessly coupled to the radioterminal. 
     
     
       13. A radioterminal according to  claim 1  further comprising:
 a hands-free interface coupled to the transceiver, wherein responsive to a request to transmit high power communications when the hand-held interface is active, the interlock is configured to provide a user notification to activate the hands-free interface. 
 
     
     
       14. A radioterminal according to  claim 13  wherein the interlock is further configured to enable the transceiver to transmit the high power communications responsive to activation of the hands-free interface. 
     
     
       15. A radioterminal according to  claim 14  wherein the interlock is further configured to enable the transceiver to transmit the high power communications for a period of time after the request to transmit the high power communications and before activation of the hands-free interface. 
     
     
       16. A radioterminal according to  claim 1  further comprising:
 an interface for a companion device, wherein responsive to a request to transmit the high power communications, the interlock is configured to provide a user notification to activate the interface for the companion device. 
 
     
     
       17. A radioterminal according to  claim 16  wherein the interlock is further configured to provide communications from the radioterminal through the interface to the companion device and/or to provide communications from the companion device through the interface to the radioterminal responsive to activating the interface for the companion device. 
     
     
       18. A radioterminal according to  claim 16  wherein the interlock is further configured to enable the transceiver to transmit the high power communications for a period of time after the request to transmit the high power communications and before activation of the interface for the companion device. 
     
     
       19. A radioterminal according to  claim 1  wherein the interlock is further configured to allow the transceiver to transmit the low power communications when the hand-held interface is activated. 
     
     
       20. A method of operating a radioterminal including a transceiver configured to transmit high power communications at a power and/or Equivalent Isotropic Radiated Power (EIRP) that is greater than or equal to a high power threshold and to transmit low power communications at a power and/or EIRP that is less than or equal to a low power threshold, and a hand-held interface, the method comprising:
 allowing the transceiver to transmit the low power communications at the power and/or EIRP that is less than or equal to the low power threshold when the hand-held interface is activated; and 
 preventing the transceiver from transmitting the high power communications at the power and/or EIRP that is greater than or equal to the high power threshold responsive to the hand-held interface being activated; 
 wherein the transceiver is configured to provide space-based communications and wireless terrestrial communications and wherein the transceiver is configured to transmit the high power communications for space-based communications and to transmit the low power communications for wireless terrestrial communications. 
 
     
     
       21. A method according to  claim 20  wherein the transceiver includes at least one amplifier configured to amplify the low power communications and to amplify the high power communications, and wherein preventing the transceiver from transmitting the high power communications when the hand-held interface is activated comprises disabling and/or limiting at least one amplifier responsive to the hand-held interface being activated. 
     
     
       22. A method according to  claim 20  wherein the radioterminal further includes a hands-free interface coupled to the transceiver, the method further comprising:
 enabling the transceiver to transmit the high power communications responsive to the hands-free interface being activated. 
 
     
     
       23. A method according to  claim 22  wherein the hands-free interface comprises a coupling for a remote earpiece and/or speaker. 
     
     
       24. A method according to  claim 22  wherein the hands-free interface comprises a speakerphone interface. 
     
     
       25. A method according to  claim 20  wherein the radioterminal further includes an interface for a companion device, the method further comprising:
 providing communications from the radioterminal through the interface to the companion device and/or providing communications from the companion device through the interface to the radioterminal. 
 
     
     
       26. A method according to  claim 20  wherein the hand-held interface comprises a built-in speaker configured to provide audio output corresponding to wireless communications received by the transceiver and/or by a another device that is coupled to the radioterminal. 
     
     
       27. A method according to  claim 20  wherein the radioterminal includes a hands-free interface coupled to the transceiver, the method further comprising:
 providing a user notification to activate the hands-free interface responsive to a request to transmit the high power communications when the hand-held interface is active. 
 
     
     
       28. A method according to  claim 27  further comprising:
 enabling the transceiver to transmit the high power communications responsive to activation of the hands-free interface. 
 
     
     
       29. A method according to  claim 28  further comprising:
 after the request to transmit the high power communications and before activation of the hands-free interface, enabling the transceiver for a period of time to transmit the high power communications when the hand-held interface is active. 
 
     
     
       30. A method according to  claim 20  wherein the radioterminal includes an interface for a companion device, the method further comprising:
 providing a user notification to activate the interface for the companion device responsive to a request to transmit the high power communications when the hand-held interface is active. 
 
     
     
       31. A method according to  claim 30  further comprising:
 providing communications from the radioterminal through the interface to the companion device and/or providing communications from the companion device through the interface to the radioterminal responsive to activating the interface for the companion device. 
 
     
     
       32. A method according to  claim 30  further comprising:
 enabling the transceiver to transmit the high power communications for a period of time when the hand-held interface is activated after the request to transmit the high power communications and before activation of the interface for the companion device. 
 
     
     
       33. A radioterminal comprising:
 a transceiver that is configured to transmit and receive wireless communications, wherein the transceiver is further configured to transmit high power communications greater than a power threshold and to transmit low power communications less than the power threshold; 
 a hand-held interface coupled to the transceiver; and 
 an interlock coupled to the transceiver, wherein the interlock is configured to allow the transceiver to transmit the low power communications less than the power threshold and to prevent the transceiver from transmitting the high power communications greater than the power threshold responsive to the hand-held interface being activated; 
 wherein the transceiver is configured to transmit the high power communications for space-based communications and to transmit the low power communications for terrestrial communications. 
 
     
     
       34. A radioterminal according to  claim 33  further comprising:
 a hands-free interface coupled to the transceiver, wherein the interlock is further configured to enable the transceiver to transmit high power communications responsive to the hands-free interface being activated. 
 
     
     
       35. A radioterminal according to  claim 33  further comprising:
 an interface for a companion device, wherein the interface is configured to provide communications from the radioterminal to the companion device and/or to provide communications from the companion device to the radioterminal. 
 
     
     
       36. A radioterminal according to  claim 33  wherein the hand-held interface comprises a built-in speaker configured to provide audio output corresponding to wireless communications received by the transceiver and/or by a device that is wirelessly and/or non-wirelessly coupled to the radioterminal. 
     
     
       37. A radioterminal according to  claim 33  further comprising:
 a hands-free interface coupled to the transceiver, wherein responsive to a request to transmit high power communications when the hand-held interface is active, the interlock is configured to provide a user notification to activate the hands-free interface. 
 
     
     
       38. A radioterminal according to  claim 37  wherein the interlock is further configured to enable the transceiver to transmit the high power communications responsive to activation of the hands-free interface. 
     
     
       39. A radioterminal according to  claim 38  wherein the interlock is further configured to enable the transceiver to transmit the high power communications for a period of time after the request to transmit the high power communications and before activation of the hands-free interface. 
     
     
       40. A radioterminal according to  claim 33  wherein the interlock is further configured to allow the transceiver to transmit low power communications when the hand-held interface is activated. 
     
     
       41. A radioterminal according to  claim 33  wherein the transceiver is configured to transmit the high power communications at an Equivalent Isotropic Radiated Power (EIRP) greater than the power threshold, and to transmit the low power communications at an Equivalent Radiated Power (EIRP) less than the power threshold. 
     
     
       42. A radioterminal according to  claim 33  wherein the power threshold includes a low power threshold and a high power threshold, wherein the transceiver is configured to transmit the high power communications greater than the high power threshold and to transmit the low power communications less than the low power threshold, and wherein the interlock is configured to prevent the transceiver from transmitting the high power communications greater than the high power threshold when the hand-held interface is activated. 
     
     
       43. A method of operating a radioterminal including a transceiver configured to provide space-based communications by transmitting high power communications greater than a power threshold and to provide wireless terrestrial communications by transmitting low power communications less than the power threshold, a hand-held interface, and a hands-free interface coupled to the transceiver, the method comprising:
 allowing wireless terrestrial communications by allowing the transceiver to transmit the low power communications less than the power threshold when the hand-held interface is activated wherein the wireless terrestrial communications are provided over a wireless link between the radioterminal and a terrestrial base station without transmitting through a space-based component between the radioterminal and the terrestrial base station; 
 preventing space-based communications by preventing the transceiver from transmitting the high power communications greater than the power threshold responsive to the hand-held interface being activated; and 
 allowing space-based communications by allowing the transceiver to transmit the high power communications responsive to the hands-free interface being activated wherein the space-based communications are provided over a wireless link between the radioterminal and a space-based component without transmitting though a terrestrial base station between the radioterminal and the space-based component. 
 
     
     
       44. A method according to  claim 43  wherein the radioterminal further includes an interface for a companion device, the method further comprising:
 providing communications from the radioterminal through the interface to the companion device and/or providing communications from the companion device through the interface to the radioterminal. 
 
     
     
       45. A method according to  claim 43  wherein the hand-held interface comprises a built-in speaker configured to provide audio output corresponding to wireless communications received by the transceiver and/or by another device coupled to the transceiver. 
     
     
       46. A method according to  claim 43  wherein the transceiver is configured to transmit the high power communications at an Equivalent Isotropic Radiated Power (EIRP) greater than the power threshold, and to transmit the low power communications at an Equivalent Radiated Power (EIRP) less than the power threshold. 
     
     
       47. A method according to  claim 43  wherein the power threshold includes a low power threshold and a high power threshold, wherein the transceiver is configured to transmit the high power communications greater than the high power threshold and to transmit the low power communications less than the low power threshold, and wherein preventing the transceiver from transmitting the high power communications comprises preventing the transceiver from transmitting the high power communications greater than the high power threshold when the hand-held interface is activated. 
     
     
       48. A method of operating a radioterminal including a transceiver configured to transmit high power communications greater than a power threshold and to transmit low power communications less than the power threshold, and a hand-held interface, wherein the radioterminal includes a hands-free interface coupled to the transceiver, the method comprising:
 allowing the transceiver to transmit the low power communications less than the power threshold when the hand-held interface is activated; 
 preventing the transceiver from transmitting the high power communications greater than the power threshold responsive to the hand-held interface being activated; and 
 providing a user notification to activate the hands-free interface responsive to a request to transmit high power communications when the hand-held interface is active. 
 
     
     
       49. A method according to  claim 48  further comprising:
 enabling the transceiver to transmit the high power communications responsive to activation of the hands-free interface. 
 
     
     
       50. A method according to  claim 49  further comprising:
 after the request to transmit the high power communications and before activation of the hands-free interface, enabling the transceiver for a period of time to transmit the high power communications when the hand-held interface is active. 
 
     
     
       51. A method according to  claim 48  wherein the transceiver is configured to provide space-based communications and wireless terrestrial communications and wherein the transceiver is configured to transmit the high power communications for space-based communications and to transmit low power communications for wireless terrestrial communications. 
     
     
       52. A method according to  claim 48  wherein the radioterminal further includes a hands-free interface coupled to the transceiver, the method further comprising:
 enabling the transceiver to transmit the high power communications responsive to the hands-free interface being activated. 
 
     
     
       53. A method according to  claim 48  wherein the radioterminal further includes an interface for a companion device, the method further comprising:
 providing communications from the radioterminal through the interface to the companion device and/or providing communications from the companion device through the interface to the radioterminal. 
 
     
     
       54. A method according to  claim 48  wherein the hand-held interface comprises a built-in speaker configured to provide audio output corresponding to wireless communications received by the transceiver and/or by another device coupled to the transceiver. 
     
     
       55. A method according to  claim 48  wherein the transceiver is configured to transmit the high power communications at an Equivalent Isotropic Radiated Power (EIRP) greater than the power threshold, and to transmit the low power communications at an Equivalent Radiated Power (EIRP) less than the power threshold. 
     
     
       56. A method according to  claim 48  wherein the power threshold includes a low power threshold and a high power threshold, wherein the transceiver is configured to transmit the high power communications greater than the high power threshold and to transmit the low power communications less than the low power threshold, and wherein preventing the transceiver from transmitting the high power communications comprises preventing the transceiver from transmitting the high power communications greater than the high power threshold when the hand-held interface is activated. 
     
     
       57. A method according to  claim 48  wherein the transceiver is configured to provide space-based communications by transmitting the high power communications greater than a power threshold and to provide wireless terrestrial communications by transmitting the low power communications less than the power threshold, wherein the radioterminal includes a hands-free interface coupled to the transceiver,
 wherein allowing the transceiver to transmit low power communications comprises providing wireless terrestrial communications by allowing the transceiver to transmit the low power communications less than the power threshold when the hand-held interface is activated wherein the wireless terrestrial communications are provided over a wireless link between the radioterminal and a terrestrial base station without transmitting through a space-based component between the radioterminal and the terrestrial base station, and 
 wherein preventing the transceiver from transmitting the high power communications comprises preventing space-based communications by preventing the transceiver from transmitting the high power communications greater than the power threshold responsive to the hand-held interface being activated, the method further comprising 
 providing space-based communications by allowing the transceiver to transmit the high power communications responsive to the hands-free interface being activated wherein the space-based communications are provided over a wireless link between the radioterminal and a space-based component without transmitting though a terrestrial base station between the radioterminal and the space-based component. 
 
     
     
       58. A method of operating a radioterminal including a transceiver configured to transmit high power communications greater than a power threshold and to transmit low power communications less than the power threshold, and a hand-held interface, wherein the radioterminal includes an interface for a companion device, the method comprising:
 allowing the transceiver to transmit the low power communications less than the power threshold when the hand-held interface is activated; 
 preventing the transceiver from transmitting the high power communications greater than the power threshold responsive to the hand-held interface being activated; and 
 providing user notification to activate the interface for the companion device responsive to a request to transmit high power communications when the hand-held interface is active. 
 
     
     
       59. A method according to  claim 58  further comprising:
 providing the high power communications from the radioterminal through the interface to the companion device and/or providing communications from the companion device through the interface to the radioterminal responsive to activating the interface for the companion device. 
 
     
     
       60. A method according to  claim 58  further comprising:
 enabling the transceiver to transmit the high power communications for a period of time when the hand-held interface is activated after the request to transmit the high power communications and before activation of the interface for the companion device. 
 
     
     
       61. A method according to  claim 58  wherein the transceiver is configured to provide space-based communications and wireless terrestrial communications and wherein the transceiver is configured to transmit the high power communications for space-based communications and to transmit low power communications for wireless terrestrial communications. 
     
     
       62. A method according to  claim 58  wherein the radioterminal further includes a hands-free interface coupled to the transceiver, the method further comprising:
 enabling the transceiver to transmit the high power communications responsive to the hands-free interface being activated. 
 
     
     
       63. A method according to  claim 58  wherein the radioterminal further includes an interface for a companion device, the method further comprising:
 providing communications from the radioterminal through the interface to the companion device and/or providing communications from the companion device through the interface to the radioterminal. 
 
     
     
       64. A method according to  claim 58  wherein the hand-held interface comprises a built-in speaker configured to provide audio output corresponding to wireless communications received by the transceiver and/or by another device coupled to the transceiver. 
     
     
       65. A method according to  claim 58  wherein the transceiver is configured to transmit the high power communications at an Equivalent Isotropic Radiated Power (EIRP) greater than the power threshold, and to transmit the low power communications at an Equivalent Radiated Power (EIRP) less than the power threshold. 
     
     
       66. A method according to  claim 58  wherein the power threshold includes a low power threshold and a high power threshold, wherein the transceiver is configured to transmit the high power communications greater than the high power threshold and to transmit the low power communications less than the low power threshold, and wherein preventing the transceiver from transmitting the high power communications comprises preventing the transceiver from transmitting the high power communications greater than the high power threshold when the hand-held interface is activated. 
     
     
       67. A method according to  claim 58  wherein the transceiver is configured to provide space-based communications by transmitting the high power communications greater than a power threshold and to provide wireless terrestrial communications by transmitting the low power communications less than the power threshold, wherein the radioterminal includes a hands-free interface coupled to the transceiver,
 wherein allowing the transceiver to transmit low power communications comprises providing wireless terrestrial communications by allowing the transceiver to transmit the low power communications less than the power threshold when the hand-held interface is activated wherein the wireless terrestrial communications are provided over a wireless link between the radioterminal and a terrestrial base station without transmitting through a space-based component between the radioterminal and the terrestrial base station, and 
 wherein preventing the transceiver from transmitting the high power communications comprises preventing space-based communications by preventing the transceiver from transmitting the high power communications greater than the power threshold responsive to the hand-held interface being activated, the method further comprising 
 providing space-based communications by allowing the transceiver to transmit the high power communications responsive to the hands-free interface being activated wherein the space-based communications are provided over a wireless link between the radioterminal and a space-based component without transmitting though a terrestrial base station between the radioterminal and the space-based component. 
 
     
     
       68. A radioterminal comprising:
 a transceiver that is configured to transmit and receive wireless communications, wherein the transceiver is further configured to transmit high power communications at a power and/or Equivalent Isotropic Radiated Power (EIRP) that is greater than or equal to a high power threshold and to transmit low power communications at a power and/or EIRP that is less than or equal to a low power threshold; 
 a hand-held interface coupled to the transceiver; 
 an interlock coupled to the transceiver, wherein the interlock is configured to allow the transceiver to transmit low power communications at the power and/or EIRP that is less than or equal to the low power threshold and to prevent the transceiver from transmitting high power communications at the power and/or EIRP that is greater than or equal to the high power threshold responsive to the hand-held interface being activated; and 
 a hands-free interface coupled to the transceiver, wherein responsive to a request to transmit high power communications when the hand-held interface is active, the interlock is configured to provide a user notification to activate the hands-free interface. 
 
     
     
       69. A radioterminal according to  claim 68  wherein the interlock is further configured to enable the transceiver to transmit the high power communications responsive to activation of the hands-free interface. 
     
     
       70. A radioterminal according to  claim 69  wherein the interlock is further configured to enable the transceiver to transmit the high power communications for a period of time after the request to transmit the high power communications and before activation of the hands-free interface. 
     
     
       71. A radioterminal comprising:
 a transceiver that is configured to transmit and receive wireless communications, wherein the transceiver is further configured to transmit high power communications at a power and/or Equivalent Isotropic Radiated Power (EIRP) that is greater than or equal to a high power threshold and to transmit low power communications at a power and/or EIRP that is less than or equal to a low power threshold; 
 a hand-held interface coupled to the transceiver; 
 an interlock coupled to the transceiver, wherein the interlock is configured to allow the transceiver to transmit low power communications at the power and/or EIRP that is less than or equal to the low power threshold and to prevent the transceiver from transmitting high power communications at the power and/or EIRP that is greater than or equal to the high power threshold responsive to the hand-held interface being activated; and 
 an interface for a companion device, wherein responsive to a request to transmit the high power communications, the interlock is configured to provide a user notification to activate the interface for the companion device. 
 
     
     
       72. A radioterminal according to  claim 71  wherein the interlock is further configured to provide communications from the radioterminal through the interface to the companion device and/or to provide communications from the companion device through the interface to the radioterminal responsive to activating the interface for the companion device. 
     
     
       73. A radioterminal according to  claim 71  wherein the interlock is further configured to enable the transceiver to transmit the high power communications for a period of time after the request to transmit the high power communications and before activation of the interface for the companion device. 
     
     
       74. A method of operating a radioterminal including a transceiver configured to transmit high power communications at a power and/or Equivalent Isotropic Radiated Power (EIRP) that is greater than or equal to a high power threshold and to transmit low power communications at a power and/or EIRP that is less than or equal to a low power threshold, and a hand-held interface, wherein the radioterminal includes a hands-free interface coupled to the transceiver, the method comprising:
 allowing the transceiver to transmit the low power communications at the power and/or EIRP that is less than or equal to the low power threshold when the hand-held interface is activated; 
 preventing the transceiver from transmitting the high power communications at a the power and/or EIRP that is greater than or equal to the high power threshold responsive to the hand-held interface being activated; and 
 providing a user notification to activate the hands-free interface responsive to a request to transmit the high power communications when the hand-held interface is active. 
 
     
     
       75. A method according to  claim 74  further comprising:
 enabling the transceiver to transmit the high power communications responsive to activation of the hands-free interface. 
 
     
     
       76. A method according to  claim 75  further comprising:
 after the request to transmit the high power communications and before activation of the hands-free interface, enabling the transceiver for a period of time to transmit the high power communications when the hand-held interface is active. 
 
     
     
       77. A method of operating a radioterminal including a transceiver configured to transmit high power communications at a power and/or Equivalent Isotropic Radiated Power (EIRP) that is greater than or equal to a high power threshold and to transmit low power communications at a power and/or EIRP that is less than or equal to a low power threshold, and a hand-held interface, wherein the radioterminal includes an interface for a companion device, the method comprising:
 allowing the transceiver to transmit the low power communications at the power and/or EIRP that is less than or equal to the low power threshold when the hand-held interface is activated; 
 preventing the transceiver from transmitting the high power communications at the power and/or EIRP that is greater than or equal to the high power threshold responsive to the hand-held interface being activated; and 
 providing a user notification to activate the interface for the companion device responsive to a request to transmit the high power communications when the hand-held interface is active. 
 
     
     
       78. A method according to  claim 77  further comprising:
 providing communications from the radioterminal through the interface to the companion device and/or providing communications from the companion device through the interface to the radioterminal responsive to activating the interface for the companion device. 
 
     
     
       79. A method according to  claim 77  further comprising:
 enabling the transceiver to transmit the high power communications for a period of time when the hand-held interface is activated after the request to transmit the high power communications and before activation of the interface for the companion device. 
 
     
     
       80. A radioterminal comprising:
 a transceiver that is configured to transmit and receive wireless communications, wherein the transceiver is further configured to transmit high power communications greater than a power threshold and to transmit low power communications less than the power threshold; 
 a hand-held interface coupled to the transceiver; 
 an interlock coupled to the transceiver, wherein the interlock is configured to allow the transceiver to transmit the low power communications less than the power threshold and to prevent the transceiver from transmitting the high power communications greater than the power threshold responsive to the hand-held interface being activated; and 
 a hands-free interface coupled to the transceiver, wherein responsive to a request to transmit high power communications when the hand-held interface is active, the interlock is configured to provide a user notification to activate the hands-free interface; 
 wherein the interlock is further configured to enable the transceiver to transmit the high power communications responsive to activation of the hands-free interface; and 
 wherein the interlock is further configured to enable the transceiver to transmit the high power communications for a period of time after the request to transmit the high power communications and before activation of the hands-free interface.